His name is DR-6 short for Dream Robot version 6 of my design. The aim of the design is to create more flexibility yet maintain good looks. (Good ratio between Arm & Leg) i.e. Arm servos are smaller than Leg servos.

At this moment I am still using Robovie-X body and head, my next step is to design a new body & head combine with a CPU board & webcam, which I hope achieves the functionality of the Robovie-PC, VisiOn research type of robot which is the next level.

I may consider selling my created parts as a kit later, currently looking for business partner / Robotic related job etc…

His name is DR-6 short for Dream Robot version 6 of my design. The aim of the design is to create more flexibility yet maintain good looks. (Good ratio between Arm & Leg) i.e. Arm servos are smaller than Leg servos.

At this moment I am still using Robovie-X body and head, my next step is to design a new body & head combine with a CPU board & webcam, which I hope achieves the functionality of the Robovie-PC, VisiOn research type of robot which is the next level.

I may consider selling my created parts as a kit later, currently looking for business partner / Robotic related job etc…

billyzelsnack wrote:This is really great stuff. The Robovie-X is a really nice robot and it looks like you've improved upon it.

Thanks, from the beginning I was just thinking to design an arm which had a good ratio between side and front view. i.e. should have the same width when it turn its arm. I have even designed gears and moulded it myself, so when its turn the arm will stay in the centre point (like human).

But when I finish designing of the arm, I have also concern about the leg can be looks better from its side view.

So these ends up me have almost designed a complete new robot! Strictly speaking, this isn’t Robovie-x any more, since the whole structure and the flexibility of the robot are completely different.

So I would say this is a new robot with the Roboie-X chest and head on it. Anyway I will soon to design a new body and head for it.

Stay tuned!

billyzelsnack wrote:This is really great stuff. The Robovie-X is a really nice robot and it looks like you've improved upon it.

Thanks, from the beginning I was just thinking to design an arm which had a good ratio between side and front view. i.e. should have the same width when it turn its arm. I have even designed gears and moulded it myself, so when its turn the arm will stay in the centre point (like human).

But when I finish designing of the arm, I have also concern about the leg can be looks better from its side view.

So these ends up me have almost designed a complete new robot! Strictly speaking, this isn’t Robovie-x any more, since the whole structure and the flexibility of the robot are completely different.

So I would say this is a new robot with the Roboie-X chest and head on it. Anyway I will soon to design a new body and head for it.

To make the master gear is such a hard / time consuming job! Since I couldn't find anything like that in a shop from the first place, so I could only buy a pack of mixed size gear in a local hobby shop then find the closest one to start with the design. i.e. designing the gear box and gears to fit between the servo control gear and centre shaft gear in CAD software.

However I have modify a lot, in order to get the size and sharp that I want, so that involved a lot of cutting, drilling, filing, sanding etc…. I found most difficult part is to make the gear to work with the existing servo horn.

Believe it or not, it has spent me more time to make the gear rather than design the robot arm

billyzelsnack wrote:I didn't notice the gearing. Even more cool!

How did you create the master for the mold?

To make the master gear is such a hard / time consuming job! Since I couldn't find anything like that in a shop from the first place, so I could only buy a pack of mixed size gear in a local hobby shop then find the closest one to start with the design. i.e. designing the gear box and gears to fit between the servo control gear and centre shaft gear in CAD software.

However I have modify a lot, in order to get the size and sharp that I want, so that involved a lot of cutting, drilling, filing, sanding etc…. I found most difficult part is to make the gear to work with the existing servo horn.

Believe it or not, it has spent me more time to make the gear rather than design the robot arm

It has a total number of 23 DOF. (see below servos layout). About the smaller servos for lighter areas, in fact I have already integrated two smaller servos inside the low arm, this allows me to design a much better looks between fount and side view of the robot arm as well as decreasing the weight of the top half of the body. This also helps to stop the backlash problem while walking.

About the legs servos arrangement, I have used some high power servos (heavy weighted servos) in order to maintain high performance as well as keeping the full body weight balance. The ideal weight ratio is 2:3 for bottom half of the body.

The leg design I have been using the ‘fold-in technique’, which means that when it is in sit-down position the top half of the leg will fold inside the low part of the leg. This allows me to use only one knee servo instead of two to produce high flexibility. The photo below shows the new leg design which is able to sit lower than the original Robovie-x leg design.

No sure how much it weight, but I would guess somewhere between 1.5 to 1.7 Kg

UncleBob wrote:Nice! How many servos and weight?

Have you consider using smaller servos for lighter areas ? Thanks

It has a total number of 23 DOF. (see below servos layout). About the smaller servos for lighter areas, in fact I have already integrated two smaller servos inside the low arm, this allows me to design a much better looks between fount and side view of the robot arm as well as decreasing the weight of the top half of the body. This also helps to stop the backlash problem while walking.

About the legs servos arrangement, I have used some high power servos (heavy weighted servos) in order to maintain high performance as well as keeping the full body weight balance. The ideal weight ratio is 2:3 for bottom half of the body.

The leg design I have been using the ‘fold-in technique’, which means that when it is in sit-down position the top half of the leg will fold inside the low part of the leg. This allows me to use only one knee servo instead of two to produce high flexibility. The photo below shows the new leg design which is able to sit lower than the original Robovie-x leg design.

No sure how much it weight, but I would guess somewhere between 1.5 to 1.7 Kg

UncleBob wrote:Have you thought of replace forearm servo with a smaller one?

From my older version of my design, I have already tested with some mini servo (something bigger than a micro servo and smaller than a standard servo) for the shoulder. It all works fine in theory and it also gave me a lot of space to design whatever shape I want it to be. But when things come to practical the mini servo has failed to pick itself up in the get up motion!

The current shoulder you see on the picture, has 2 servos formed into a cube shape, this will give a much shorter arm layout instead of mounting the arm roll servo under the shoulder servo (just to make it look thin) in this case the entire arm will be too long…. Like some other robot with very long (monkey) arms. lol..

UncleBob wrote:Have you thought of replace forearm servo with a smaller one?

From my older version of my design, I have already tested with some mini servo (something bigger than a micro servo and smaller than a standard servo) for the shoulder. It all works fine in theory and it also gave me a lot of space to design whatever shape I want it to be. But when things come to practical the mini servo has failed to pick itself up in the get up motion!

The current shoulder you see on the picture, has 2 servos formed into a cube shape, this will give a much shorter arm layout instead of mounting the arm roll servo under the shoulder servo (just to make it look thin) in this case the entire arm will be too long…. Like some other robot with very long (monkey) arms. lol..

hai ........ sorry for my English is bad
your robot are very good in shape design ...
I really like the hands especially the fingers.
you can tell how to design a robot, especially in selecting materials and type of servo used ...
I have created a humanoid robot, but failed, I created a robot that can not go forward ...
I use aluminum material with a thickness of 0.8mm and I use servo HITEC type 311HD with torque around 3kg ..
I hope you can help me ...
thanks ..

hai ........ sorry for my English is bad
your robot are very good in shape design ...
I really like the hands especially the fingers.
you can tell how to design a robot, especially in selecting materials and type of servo used ...
I have created a humanoid robot, but failed, I created a robot that can not go forward ...
I use aluminum material with a thickness of 0.8mm and I use servo HITEC type 311HD with torque around 3kg ..
I hope you can help me ...
thanks ..